C31232233133313221211113313331333133313113311331211111333131331   >>    C3123223313331322121111331333133313331311331133121111133313133   <<    C31232233133313221211113313331333133313113311331211111333131333   >>      C31232233133313221211113313331333133313113311331211111333131332   >>